xG Lookback windows

Post by Joe Law, 2023-07-27 16:20:04.

FPL

We often see xG (expected goals) data being used to make FPL decisions but the data ranges selected for such use often feel arbitrary, how large should your xG lookback windows be and what is a useful data period to judge a player based on. In this article I look at the predictive power of xG data over several different date ranges.

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